Placing a tape measure horizontal against the body, find your bust, waist and hip measurements.
BUST: Measure around the fullest part. Arms should be down by your side and slightly apart.
WAIST: Measure around the natural waistline. You can find the natural waistline by bending to one side (above your navel and below your ribcage).
HIP: Measure around the fullest part of the hip, with feet together and legs straight.